Hello there, @katie-hill. I appreciate your input from every angle. 

Turning off permanently the suggestion pop-ups is unavailable. Those are designed to guide and suggest you on how to optimize your QuickBooks Online (QBO) experience. 

In the meantime, what you can do is to click on the X or No, thanks buttons to prevent the pop-ups from showing up again.

I know how the feature you want would be helpful in the program. The Community recognizes feedback and suggestions from customers like you which can help us improve our product and services to our customers' delight.

While we continue to make your experience with us even better, I recommend visiting our QuickBooks Blog to get the recent news, information about the latest features, and updates. 

Please know that I'm always here to help you if you any other questions about QuickBooks, just leave a comment below. Have a nice day.